220173438 has 8 divisors (see below), whose sum is σ = 440346888. Its totient is φ = 73391144.

The previous prime is 220173433. The next prime is 220173487. The reversal of 220173438 is 834371022.

220173438 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

220173438 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220173433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18347781 + ... + 18347792.

It is an arithmetic number, because the mean of its divisors is an integer number (55043361).

Almost surely, 2^220173438 is an apocalyptic number.

220173438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220173438 is a wasteful number, since it uses less digits than its factorization.

220173438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36695578.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 220173438 is about 14838.2424161354. The cubic root of 220173438 is about 603.8396702498.

The spelling of 220173438 in words is "two hundred twenty million, one hundred seventy-three thousand, four hundred thirty-eight".